I've been working on a mailbox mod for my MES 30 2.5 today. I got all the mods made to the mailbox (thanks to all the information here). I need some expert advice on the duct connections to the MES. Most of the MES mailbox mods I've seen on SMF show the 90 degree duct connecting to the MES chip loader outlet with the ribbed end going in. On my MES 30 2.5 the ribbed end is too small for the outer circle and too big for the inner circle. See below. There is also a middle lip going around half of the top of the outer circle that locks the chip loader in. The smooth round end of the 90 degree duct fits snugly in the outer circle, with the exception of that lip around the top for the chip loader. Do any of you have advice with this connection on the MES 30 2.5? Last question I have is on the flex tube. The mailbox is currently on the ground, but I hope to move it up a few inches and mount it to the stand of my MES. Should I shorten the flex tube? Thanks you for any feedback. I'm hoping to get these final details taken care of so I can do a test smoke tomorrow afternoon.